moore



(No Model.) 2 Sheets-Sheet 1. J. J. MOORE & J. A. BALL.

BASE PIVOT FOR STRAW STAOKERS.

No. 328,049. Patented Oct. 13, 1885.

\A/ITNLSSESK (No Model.) 2 Sheets-Sheet 2. J. J. MOORE & J. A. BALL.

BASE PIVOT FOR STRAW STAOKERS. No. 328,049. Patented Oct. 13, 1885.

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WTNEEEEE. INVEH U E: ZMJX W UNITE STATES PATENT OFFICE.

JONATHAN J. MOORE AND JAMES. A. BALL, OF THORNTOVVN, INDIANA, ASSIGNORS OF ONE-HALF TO J. O. TAYLOR, OF SAME PLACE.

BASE-PIVOT FOR ST RAW-STACKERS.

SPECIFICATION forming part of Letters Patent No. 328,049, dated October 13, 1885.

(No model.)

To all whom it may concern Be it known that we, JONATHAN J. MooRE and JAMES A. BALL, citizens of the United States, residing at Thorntown, in the county of Boone and State of Indiana, have invented a new and useful Improvement in Base-Pivots for Straw-Stackers, of which the following is a specification.

Our invention relates to an improvementin the base-pivot fora turning straw-stacker, for which Letters Patent N 0. 284,317 were issued to us dated September 4, 1883.

This base-pivot is designed for use in the straw-stacking machine shown in Reissued Patent No. 10,315 to J. J. Moore, April 10, 1883.

The object of our present improvment is to prevent the stacker from turning too easily on its lower pivot.

The accompanying drawings illustrate our invention.

Figure 1 represents a vertical section of our improved base-pivot. Fig. 2 is a transverse section on the line a a, Fig. 1. Fig. 3 shows the device in elevation with a part of the socket broken away.

I) is a stationary pivot, substantially hemispherical externally, on which rests the conical socket c,having straight sides. The pivot b has 011 one side an extension, at, which is bolted to the tongue A, by which the stacker is drawn. The tubes or rods forming the lower end of the derrick-frame enter opposite sides of the socket c, as at h, and are there secured. The purpose of making the pivot hemispherical and the socket with straight sides is to admit of placing the pivot on inclined ground without affecting the fit and consequent frictional contact between the pivot and socket, as fully explained in our 0 before-mentioned Letters Patent.

It has been found in practice that more friction is required to properly hold the derrick and straw-carrier from turning than can be obtained by the contact of the plain surfaces 45 to intermesh with those of the interior of the 55 socket, leaving the rest of the pivot-surface plain.

We claim as our invention- In a base-pivot for astacker-frame, the combination of the pivot-casting I), having curved 6o sides provided with corrugations 6, arranged as described and shown, and socket 0, having straight sides Wholly corrugated, substantially as and for the purpose specified.

JONATHAN J. MOORE. JAMES A. BALL.

Witnesses:

A. F. BALL, W. H. SIMs.

For the purpose of 0 

